JP4909201B2 - Stirrer - Google Patents

Description

  The present invention relates to a stirrer, and more specifically, can perform mixing, stirring, dispersion, dissolution, and the like of a liquid-based mixed system such as a solid-liquid system and a liquid-liquid system efficiently. The present invention relates to a stirrer capable of forming a uniform mixed system even in a mixed system of powder and liquid having a large specific gravity such as hard particles such as diamond powder.

  Conventionally, composite plating is performed using hard inorganic substance particles such as diamond particles. For example, when nickel / diamond composite plating is applied to an object to be plated, first, uniform nickel is used. The diamond particles dispersed in the plating solution are allowed to settle uniformly on the electrodeposition surface of the object to be plated (material) by sedimentation from above, or the diamond particles are placed in a certain small bag, After submerging in the nickel plating solution, after the fixing method by the bagging fixing method in which the object to be plated (material) is put in this bag and uniformly adhered, the diamond particles are not dispersed as the second stage. Put in nickel plating solution and build up for complete eutectoid deposition to prevent diamond particles from falling off. If plating method has been carried out.

On the other hand, various types of mixing devices for mixing solid particles and liquid have been proposed. For example, Patent Document 1 discloses a stirring device provided with paddle blades and auxiliary blades, and Patent Document 2 particularly describes a cement mixer. A suitable mixer, Patent Document 3, proposes a magnetic powder liquid stirring tank in a flaw detection apparatus that inspects the presence or absence of scratches by immersing a steel material in a magnetic powder liquid and attaching fluorescent magnetic powder thereto.
JP 2003-275564 A JP 2004-230757 A JP 2005-207895 A

  However, in the composite plating method based on the two-stage method as described above, the work is in two stages. Therefore, the technology of applying the composite plating of the hard inorganic substance particles in one stage without using complicated processes and equipment. Development was desired. On the other hand, in any of the above conventional stirring means, it has been difficult to perform composite plating of hard inorganic substance particles as described above in one step, for example.

  The present invention has been made in view of the above problems, and can efficiently mix, stir, disperse, dissolve and the like of various mixed systems such as a solid-liquid system and a liquid-liquid system. For example, the specific gravity is heavy. Even hard inorganic material particles can be uniformly dispersed in a liquid, and it is possible to perform composite plating of hard inorganic material particles in one step without using a stirrer with a complicated configuration. Furthermore, it aims at providing the stirring apparatus which can mix and melt | dissolve a pigment and a solvent, for example, without entraining air.

  As a result of intensive studies to achieve the above object, the present inventors attached a partition wall to the inner wall of the agitation tank so as to be liquid-tight except for the upper and lower parts of the tank, and the inside of the tank is separated by this partition wall. The stirrer is divided into a stirrer and a main tank part, and the liquid in the tank is allowed to flow between the stirrer and the main tank part from above and below the partition wall. Adopting the bottom wall of the agitation tank, the wall surface on the opposite side of the installation position of the partition wall of the main tank part and the agitation part from the installation position of the partition wall separating the main tank part and the agitation part, or in other words, in other words For example, by using a bottom structure that rises toward the opposing wall surfaces of the main tank unit and the stirring unit, the stirring liquid stirred in the stirring unit flows into the main tank unit from under the partition wall. From the main tank, the liquid is stirred from above the partition wall. The liquid in the tank can be circulated between the main tank part and the stirring part without using a pump or the like, and has a relatively high specific gravity such as hard inorganic substance particles. Even so, it is possible to uniformly disperse in a liquid, and the excellent stirring ability makes it possible to obtain not only the composite plating as described above but also a stirring device useful as a stirring device for various mixed systems. The headline and the present invention were made.

That is, the present invention includes a stirring unit in which a propeller-type stirrer is installed and a main tank unit, and the stirring unit and the main tank unit allow liquid in the tank to flow between them from above and below. The stirring device having a stirring tank partitioned by a partition wall arranged in such a manner that the bottom surface of the stirring tank is located at a position corresponding to or near the partition wall installation position and the book. The tank portion has a structure configured to rise toward the mutually opposing wall surfaces, and the bottom portion of the main tank portion and / or the stirring portion further includes a tapered portion that rises toward the respective wall surfaces. The partition wall has a protruding portion that protrudes toward the agitating portion on the lower end side, and a notch portion into which the shaft portion of the propeller-type agitator can be inserted is formed in the protruding portion. To provide a stirring device Here, in the agitation apparatus of the present invention, further provided is an adjuster which is provided so as to be movable up and down along the partition wall and adjusts the height from the bottom surface of the lower end of the partition wall. If there is, it is more preferable. And it is more suitable even if it arrange | positions the baffle plate which has a reverse bellmouth structure in the said horizontal direction further in the said main tank part.

  The stirring device of the present invention may further include a plurality of stirring units, in other words, a plurality of stirring units with respect to one main tank unit. The bottom structure of the bottom surface of the agitation tank is such that a part of the bottom surface of the main tank part faces the agitation part from the position corresponding to or near the position of the partition wall provided between the agitation part Wall surface, that is, rises toward the opposite wall surface of the main tank part, and the other part corresponds to the position of the partition wall provided between the two stirring parts or the vicinity thereof Each part corresponding to the plurality of stirring parts on the bottom surface of the main tank part is sequentially moved so as to rise from the position to the wall surface facing the stirring part, that is, the wall surface opposite to the partition wall of the main tank part. Since it rises, when the bottom surface of the main tank part is viewed as a whole, it corresponds to a plurality of stirring parts on the bottom surface of the main tank part In such a configuration, the bottom surface of the main tank section is the main tank section generated by the stirring of the content liquid in each stirring section. It is more preferable that the liquid is raised toward the convection wall caused by the convection collision of the content liquid.

  According to the stirring device of the present invention, the bottom surface of the stirring tank corresponds to the position where the partition wall is disposed or the vicinity thereof, that is, the position where the partition wall on the bottom surface of the stirring tank is disposed or the vicinity thereof. A bottom structure that rises from the lower part to the side wall on the opposite side of the partition wall of the agitator and main tank, and more preferably the position of the partition wall on the bottom By providing a ship bottom structure that rises from the location located below, the stirring liquid stirred by the propeller-type stirrer in the stirring section flows from the bottom of the partition wall into the main tank section, and from the main tank section to the top of the partition wall. Then, the liquid flows into the agitating part, and the uniformity of the agitation of the liquid is obtained in the main tank part, and the uniform liquid can be flowed. Therefore, for example, even when performing composite plating as described above, it is possible to uniformly perform plating at any location in the main tank. In addition, as the agitator is stirred, the stirring liquid flows into the main tank part from the lower part of the partition wall, and the liquid on the main tank part rises and flows over the partition wall to the stirring part side. Even without a piping structure such as a pump, the content liquid can be circulated (suctioned and discharged) between the agitating part and the main tank part.

  Further, by using a propeller type stirrer as the stirrer, it is possible to prevent the stirrer from being worn as compared with the case of using a stirrer or the like, and for example, hard particles such as diamond particles can be mixed. In addition, since the stirring section where the propeller type stirrer is installed is separated from the main tank section by the partition wall, the propeller section of the propeller type stirrer is protected, and the devices and members inserted into the main tank section are removed from the propeller section. In particular, the partition wall is provided with a protruding portion that protrudes toward the stirring portion at the lower end thereof, and is formed into a substantially L-shaped side surface, and the shaft portion of the propeller-type stirrer can be inserted into the protruding portion. By making the notch part opened, it can protect more effectively.

  Further, in addition to the ship bottom structure, the bottom surface of the main tank part and / or the stirring part further includes a tapered part that rises toward the respective wall surface, so-called "so-called" in the main tank part and the stirring part. It is possible to reduce “pools” and to make the liquid system in the tank more uniform and homogeneous. Furthermore, if the flow straightening plate having the inverted bell mouth structure is disposed in the horizontal direction in the main tank part, the uniformity of the stirring liquid in the main tank part can be further improved.

  If the stirring device of the present invention further includes a plurality of stirring units, for example, even if the volume of the stirring tank is relatively large, the uniformity of the content liquid can be more easily achieved. Can be obtained. In the case of such a configuration, for example, the size and shape of each stirring unit are the same, and each stirring unit is equipped with a stirrer having the same stirring force, so that the bottom surface of the main tank unit has each stirring unit. If it is configured to rise toward the convection wall caused by the collision of the convection of the content liquid in the main tank generated by the agitation of the content liquid in The liquid pool is further reduced.

  According to the present invention, for example, various liquid mixed systems such as a solid-liquid system and a liquid-liquid system can be efficiently mixed, stirred, dispersed, dissolved, etc., for example, hard inorganic substance particles having a high specific gravity. Even in such a case, it is possible to uniformly disperse in the liquid, and it is possible to perform the composite plating of the hard inorganic substance particles in one step without using a stirring device having a complicated configuration.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view of a stirring device A1 of a first configuration example for explaining a configuration example of the stirring device of the present invention. A stirrer A1 shown in FIG. 1 includes a stirrer 1 and a propeller-type stirrer 2, and the stirrer 1 is divided into a main tank 11 and a stirrer 12 by a partition wall 3. Further, the bottom surface 4 of the agitation tank 1 includes a bottom surface 41 of the main tank portion raised toward the side wall facing the partition wall 3 of the main tank portion 11 with the position below the partition wall 3 as a base line, and a bottom surface of the partition wall 3. And a stirring portion bottom surface 42 that rises toward the side wall facing the partition wall 3 of the stirring portion 12 with the position of as a base line.

  The basic flow of the liquid in the tank of the stirring device of the present invention will be described by the stirring device A1. As shown by the arrow in FIG. The liquid flows from the top to the bottom and flows out from the bottom of the partition wall 3 toward the main tank 11. In the main tank 11, a turbulent flow in the vertical and horizontal directions occurs. As the liquid level rises, the liquid flows into the stirring unit 12 from above the partition wall 3, and the liquid in the tank circulates between the stirring unit 12 and the main tank unit 11 by these flows. Accordingly, while stirring and mixing, the flow rate of the stirring liquid supplied to the main tank unit 11 is proportional to the water level difference (arrow W in the figure) between the main tank unit 11 and the stirring unit 12. It can be measured by calculating the volume of the water level difference (arrow W in the figure). The flow rate can be controlled by the rotation speed of the propeller unit 23 of the propeller type agitator 2.

  The stirrer 1 of the stirrer A1 has a rectangular box shape composed of a hollow bottomed rectangular column whose upper surface is open, and the main tank unit 11 and the stirrer 12 each have a rectangular overhead view shape. The shape of the tank is not particularly limited. For example, when it is assumed that the shape of the main tank part includes the partition wall part in the wall surface of the main tank part, the stirring devices A1 and A2 shown in FIGS. A polygonal box shape such as a rectangular box shape such as A3, or a substantially circular box shape such as a substantially cylindrical tank shape (bottomed cylindrical body) such as the stirring devices A4 and A5 shown in FIGS. It may be a mold. Among these, a rectangular box shape, a substantially circular box shape, and the like are more preferable. In addition, even if the shape of the main tank portion is a substantially circular box type such as a substantially cylindrical tank type such as the stirring devices A4 and A5 shown in FIGS. 5 and 6, the shape of the stirring portion is the same as that of the partition wall. Assuming that it is included in the wall surface of the stirring unit, a polygonal box shape such as a substantially rectangular box shape or a substantially pentagonal box shape is preferable, and a substantially rectangular box shape or a substantially pentagonal box shape is more preferable. .

  In the present invention, the material of the stirring tank is not particularly limited, and a material having the same material as that of a known stirring tank can be used. For example, plating is performed using the stirring apparatus of the present invention. In such a case, those having a heat resistance of from room temperature to about 60 ° C. are suitable, and more preferably, heat resistance up to about 90 ° C. is desirable. More specifically, examples of the material having such a material include resin-based, glass, and metal-based materials, and more specifically, acrylic resin, PP (polypropylene), PVC, and the like. (Polyvinyl chloride), heat-resistant PVDF (polyvinylidene fluoride), PTFE (fluororesin), iron, stainless steel, and the like. In addition, as described above, the flow rate of the stirring liquid supplied to the main tank unit 11 can be measured by observing the inside of the tank, or the stirring state in the tank can be observed from the outside. For example, a transparent or translucent material that can observe the state of the liquid in the tank from the outside of the tank is more preferable among known materials for the stirring tank.

  The propeller-type stirrer 2 includes a rotation drive unit 21 such as a motor, a shaft unit 22 connected to one end side of the rotation drive unit 21, and a propeller unit 23 attached to the other end side of the shaft unit 22. . In the present invention, the propeller type stirrer is not particularly limited in size, type, etc., according to the size of the stirring tank, the target stirring force, etc. from among known propeller type stirrers, For example, as for the type of propeller, the number of blades may be two or more, and the material is not particularly defined. As the stirring motor, a motor having a high torque can be used if it has a high viscosity. Further, a plurality of propellers may be attached to one motor using a pulley. And stirring conditions, such as the rotation speed of a propeller, can also be made into the normal stirring conditions of the stirrer to be used according to the target stirring power. As the arrangement position in the width direction in the stirring unit 12 of the propeller-type stirrer 2, the propeller unit 23 is inserted so as to be near the center in the width direction in the stirring unit 12 in consideration of uniform stirring. It is desirable to do.

  The installation position of the partition wall 3 is not particularly limited, and can be appropriately selected according to a desired volume ratio between the main tank unit 11 and the stirring unit 12. However, it is more preferable that the volume of the stirring section is as small as possible. For example, the dimension indicated by the arrow L in FIG. 1 (the outer dimension of the stirring section, that is, the outer wall of the partition wall as viewed from the stirring section) To the outer wall of the stirring tank) is preferably 1.1 to 1.7 times the diameter of the propeller used, more preferably 1.4 to 1.7 times, Is preferred. In addition, the size of the partition wall 3 is set to be the same as the width of the inner wall of the stirring tank 1 at the arrangement position so that the lateral width is liquid-tight with the side wall of the stirring tank 1, but the height is The liquid in the tank can flow between the stirring section 12 and the main tank section 11 from above and below the partition wall 3 and can be appropriately selected so that a desired flow rate can be obtained. In the present invention, the shape of the partition wall is not particularly limited. For example, in the case where the main tank portion is a polygonal box shape such as the stirring device A1 shown in FIG. In the case where the shape of the main tank part is a substantially circular box shape, for example, a curved plate shape that becomes a cylindrical shape in accordance with the wall surface of the main tank part, such as a partition wall 3 ′ shown in FIG. Even a thing of flat form may be sufficient like the partition wall 3 shown in FIG.

In addition, the height of the partition wall 3 is set so that the liquid in the tank can flow between the stirring section 12 and the main tank section 11 from above and below the partition wall 3. The position in the direction is not particularly limited. The flow rate to the main tank 11 can be controlled to some extent not only by the rotation of the propeller 23 but also by the height of the gap below the partition wall 3 (arrow H _{2 in the} figure). If the adjustment part 31 is attached to the lower side of the wall 3 so as to be slidable in the vertical direction, the flow rate from the stirring part to the main tank part can be adjusted. Furthermore, the relationship between the height of the partition wall 3 (arrow H _{2 in the} figure) and the installation of the propeller portion 23 of the propeller-type stirrer 2 is such that the propeller portion 23 is below the lower end of the partition wall 3. The installation position is not particularly limited, and the installation position can be appropriately selected according to the bottom surface of the stirring tank. For example, the installation height of the upper end portion of the propeller portion 23 is preferable to the lower end portion of the partition wall 3. Is more preferably about 1 to 3 times, more preferably about 1.5 to 2 times the height of the propeller portion. In the present invention, the material of the partition wall is not particularly limited, and for example, the partition wall can be made of the same material as the above-described stirring tank.

  Further, the partition wall 3 has a substantially L-shaped side surface provided with a protruding portion 32 protruding toward the stirring portion 12, and the propeller portion 23 of the propeller-type stirrer 2 is provided below the protruding portion 32 on the protruding portion 32. Therefore, at least a notch portion 33 through which the shaft portion 22 can be inserted is opened. According to this partition wall 3, as will be described later, when a throwing heater is put into the main tank as a heating means, damage to the heater by the propeller 23 can be reliably prevented. In addition, when providing the adjustment part 31 in a partition wall, as above-mentioned, you may attach an adjustment part to the main tank part side or the stirring part side so that it can move up and down along a partition wall, When the side surface is substantially L-shaped, for example, the adjustment portion is fixed to the lower surface of the end of the protruding portion on the partition wall body side, and is attached so as to be movable up and down along the partition wall. The part and the adjustment part can be integrated and moved up and down along the partition wall.

  The bottom surface 4 of the agitation tank 1 has a ship bottom structure composed of a main tank part bottom surface 41 and a stirring part bottom surface 42, and a base line of rising or rising of the ship bottom structure (the intersection of the main tank part bottom surface 41 and the agitation part bottom surface 42). The position of the line) is a position corresponding to or near the disposition position of the partition wall 3, that is, a position below the disposition position of the partition wall or near the disposition position of the partition wall, preferably This is a position below the arrangement position of the partition wall 3. In addition, when the position of the rising or rising baseline of the ship bottom structure (the intersection of the bottom surface of the main tank and the bottom surface of the stirring unit) is a position corresponding to the vicinity of the partition wall, The distance can be appropriately selected in consideration of, for example, ease of manufacture.

Further, the shape of the ship bottom structure is not particularly limited, but considering the uniformity of the liquid in the tank due to stirring and dispersion, etc., the main tank section 11 and the stirring section 12 as in the stirring apparatus A1. When the overhead view shape of the tank is a quadrangle, the rising height of the bottom 41 of the main tank (arrow h _{1 in the} figure) and the rising height of the stirring part bottom 42 (arrow h _{2 in the} figure) are approximately the same. Is more preferable. Each Crawling Height in the present invention (in the arrow h ₁ and in the arrow h ₂₎ is not particularly limited. In the present invention, the material of the bottom surface of the ship bottom structure is not particularly limited, and can be made of, for example, the same material as that of the stirring tank described above.

In the case of the stirring device of the present invention, the liquid to be stirred is not particularly limited, but is suitable for stirring, mixing, and dispersing in various liquid-based liquid mixing systems such as solid-liquid and liquid-liquid. The method of using the stirrer of the present invention is not particularly limited and can be used for stirring, mixing, dispersing, dissolving, and the like of various mixed systems. -If it is a liquid system, it can be used not only for stirring, mixing, and dispersing, but also as a stirring apparatus (stirring tank) for composite plating for performing solid particle / metal plating composite plating on the object to be plated in the main tank section. Is possible. In the case of performing composite plating, examples of solid particles include inorganic substance particles and organic substance particles. Among these solid particles (stirring particles), hard particles are more effective. More specifically, diamond particles, SiC (silicon carbide) particles, alumina particles, ZnO ₂ particles, inorganic particles such as CBN particles, organic material particles such as TEF (polytetrafluoroethylene), acrylic particles, butadiene particles, etc. Can be mentioned.

  The particle size of the solid particles is not particularly limited, and can be appropriately selected to have a particle size suitable for the intended composite plating. For example, when diamond particles are selected as the solid particles of the composite plating, Considering the ease of electrodeposition of diamond particles, the average particle size is preferably less than 35 μm, more preferably 10 to 30 μm, particularly preferably about 15 to 25 μm (600 to 1000 mesh). . In addition, the measuring method of the average particle diameter of the said solid particle is based on the laser method.

  When performing solid particle / metal plating composite plating using the stirring apparatus of the present invention, a plating solution containing a metal source is used as the solid-liquid system liquid. As such a metal source, A metal source of a known plating method can be used, and examples of such a metal source include nickel, copper, zinc, iron, tin, gold, silver, palladium, and the like. It can use individually or in combination of 2 or more types as appropriate. Of course, the plating solution may contain various blending components blended in a normal composite plating solution. In addition, when performing solid particle / metal plating composite plating using the stirring device of the present invention, all plating and chemical plating can be applied as long as the composite plating is used. It can set according to the usual method of the plating method to be performed.

  The stirrer of the present invention can heat the liquid in the tank as necessary, for example, when performing solid particle / metal plating composite plating in the tank. In the case of heating, an overall heating means such as a means for putting the entire tank into a water bath, an in-tank heating means such as throwing a throwing heater into the main tank portion, or the like can be employed. Here, for example, when a throwing quartz heater is used as the heating means, in the case of the stirring device of the present invention, the partition wall can prevent the heater from being damaged by the propeller portion of the stirrer, and in particular, the stirring device A1. If the partition wall 3 has a substantially L-shaped side surface as described above, damage to the heater by the propeller portion can be reliably prevented.

  Next, a second configuration example of the present invention will be described with reference to FIGS. In the following description of the configuration example, the same configuration as the first configuration example is denoted by the same reference numeral, and the description of the configuration is omitted. Moreover, about the structure similar to the structure already demonstrated, the same code | symbol is attached | subjected and description of the structure is abbreviate | omitted. FIG. 2 is a schematic plan view schematically showing the configuration of the stirring device A2 of the second configuration example of the present invention. In FIG. 2, the propeller-type stirrer 2 is omitted in FIG. Only 23. FIG. 3 is a schematic perspective view showing the configuration of the stirring device A2 more specifically. In order to make the configuration in the tank easy to understand, the stirring tank 1 is made of a transparent material, and its thickness (wall thickness) (Thickness) is omitted. In addition, the code | symbol 7 in FIG. 3 is a partition-wall mounting base for arrange | positioning the partition wall 3 in a tank, Although it was not shown on drawing in FIG.1, 2, 4, etc., it is stirring apparatus A1, A3. Are similarly provided in the tank. The stirrer A2 is the same as the stirrer A1 in the above-described stirrer A1 except that tapered portions 51, 52, 52 are further provided on the upper surface of the bottom surface 41 of the main tank. .

  The bottom surface 41 of the main tank portion of the agitator A2 is provided with tapered portions 51, 52, and 52 that are raised toward the three wall surfaces on the upper surface except for one direction where the partition wall 3 is disposed and there is no wall surface. It has been. The tapered portion is provided at least on the bottom surface of the main tank portion, so that so-called “stack” in the main tank portion can be further prevented. When the main tank portion is a polygonal box shape, the partition wall is Except for one direction in which there is no wall surface, a tapered portion that rises toward each wall surface may be provided, or a tapered portion that rises toward some wall surfaces may be provided. In addition, by providing a tapered portion on the upper surface of the stirring portion bottom surface 42 in the same manner, so-called “accumulation” can be further prevented in the stirring portion 12.

  The taper part 51 provided toward the wall surface (the wall surface on the left side in the drawing in FIG. 2) facing the partition wall 3 of the main tank unit 11 of the stirring device A2 of the second configuration example is the third configuration shown in FIG. Similar to the stirring device A3 of the example, both sides are raised at the same height toward the wall surface, and the taper portions 52, 52 on both sides thereof have the same height as the taper portion 51 on the taper portion 51 side. In the place located under the wall 3, it rises toward each wall surface (upper and lower wall surfaces in FIG. 2) adjacent to the partition wall 3 so as to have a height of zero (in an inclined state). ing. Here, in the case of the present invention, the shape of the taper portion is not particularly limited. For example, the partition wall of the main tank portion of the taper portion provided toward the wall surface facing the partition wall of the main tank portion. The height at the opposite wall surface may be different from the height at the wall surface facing the partition wall of the main tank part of the tapered part provided toward the wall surface adjacent to the partition wall of the main tank part, Even at a position below the partition wall of the taper portion, the taper may be raised toward each wall surface adjacent to the partition wall in an inclined state so as to have a slight height. However, in consideration of the effect of providing the tapered portion, the configurations such as the tapered portions 51, 52, and 52 of the stirring devices A2 and A3 of the second configuration example and the third configuration example illustrated in FIGS. Is preferred.

In addition, the inclination angle of each taper portion is not particularly limited, but in consideration of the effect of the installation of the taper portion, the overhead shape as shown in FIGS. The inclination angle r ₁ (see FIG. 4) with respect to the bottom surface of the tapered portion 51 rising toward the wall surface facing the partition wall 3 is preferably 2 ° to 30 °, more preferably 3 ° to 7 °. Is more preferable. Further, the rising position (base line of rising) from the bottom surface of each taper portion is not particularly limited, and in the case of a rectangular parallelepiped box-shaped main tank portion as shown in FIGS. The rising height is preferably 1.1 to 1.7 times the diameter of the propeller used, and more preferably 1.4 to 1.7 times. In addition, the case where this tank part is a substantially circular box type is mentioned later.

  As described above, the tapered portion provided as necessary in the present invention is not particularly limited in its shape, inclination angle, number of installations, etc., and the size of the stirring tank, the main tank section, the stirring section, It can be appropriately selected depending on the shape and the like. In the present invention, the material of the tapered portion is not particularly limited, and can be made of the same material as that of the above-described stirring tank, for example.

  Next, the stirring apparatus of the third configuration example of the present invention will be described with reference to FIG. FIG. 4 is a schematic longitudinal sectional view of the stirring device A3 of the third configuration example of the present invention, and the inside of the circle in the drawing is an enlarged view of the inverted bell mouth structure. This stirrer A3 is the same as the stirrer A2 of the second configuration example described above, and further, a current plate in which a plurality of gaps 6a having an inverted bell mouth structure are arranged in the main tank portion 11 over almost the entire surface. 6 is arranged in the horizontal direction, and the other configuration is the same as that of the stirring device A2 of the second configuration example. This stirrer A3 can obtain a stirrer with higher uniformity in the main tank part 11 by the arrangement of the current plate 6 in which a gap having an inverted bell mouth structure is opened. If the composite plating as described above is performed in the main tank portion 11, more uniform plating can be performed by immersing the object to be plated above the rectifying plate 6. In addition, when arrange | positioning a baffle plate in this invention, although arrange | positioning in a horizontal direction is preferable, it is needless to say that it may incline slightly from a horizontal direction.

  In the present invention, when the rectifying plate having the inverted bell mouth structure is provided, the inverted bell mouth structure is not particularly limited. For example, the rectifying plate 6 has one gap portion 6 a of the rectifying plate 6. The ratio between the upper surface diameter (arrow a in the figure) and the lower surface diameter (arrow b in the figure) is preferably a: b = 1: 1.5 to 1: 3, more preferably a: b = 1: 1.5. ˜1: 2.5 is preferable, and a: b = 1: 2 is particularly preferable. More specifically, for example, those with a = 3 mm and b = 6 mm are particularly preferably used. Further, the number of openings 6a is not particularly limited. In addition, when arrange | positioning a baffle plate, you may arrange | position so that it may become the whole width direction of the main tank part 11, and you may arrange | position in the part. Moreover, the arrangement | positioning height of a baffle plate is not restrict | limited in particular, The shape of this tank is not ask | required.

  The stirring apparatus of the 4th structural example of this invention and the 5th structural example is demonstrated with FIG. FIG. 5 is a schematic plan view of the stirring device A4 of the fourth configuration example of the present invention, and in order to facilitate the explanation of the configuration of the bottom surface, the state of the vertical section of only the bottom surface portion is shown below. In FIG. 5 as well, the propeller type stirrer 2 is omitted and only the propeller portion 23 is shown. FIG. 6 is a schematic perspective view of the stirring device A5 of the fifth configuration example of the present invention. In order to make the configuration inside the tank easy to understand, the stirring tank 1 is made of a transparent material, and its thickness (wall thickness). Is omitted. When it is assumed that the stirrer A4 and the stirrer A5 include the shape of the main tank part 13 including the partition walls 3 ′ and 3 in the wall surface of the main tank part 11, the shape of the main tank part 13 is a cylindrical tank shape. (Bottomed cylindrical body), a substantially circular box type (substantially cylindrical body with a bottom), and the shape of the agitating unit 12 is the wall of the agitating unit 12 in the partition walls 3 ′ and 3 Assuming that it is included in the above, it is a substantially rectangular box shape or a rectangular box shape. The stirring device A4 is a curved plate in which the partition wall 3 ′ has a cylindrical shape in accordance with the wall surface of the main tank unit 13, and the stirring device A5 is similar to the configuration example in which the partition wall 3 is described above. It is a flat plate.

  Also in the case of the substantially circular box type stirring tank 1 such as the stirring devices A4, A5, the bottom surface 4 of the stirring tank 1 has a ship bottom structure composed of a main tank bottom surface 43 and a stirring portion bottom surface 42, The position of the base line of the rising or rising of the ship bottom structure, the bottom surface 42 of the stirring unit, the partition walls 3 ′, 3 and the like are configured according to the above-described configuration example.

  When the shape of the main tank part such as the stirring devices A4 and A5 is a substantially circular box type stirring tank 1, the bottom face 43 of the main tank part is assumed not to be provided with the taper part 53. As shown by the two-dot broken line in the diagram showing the state of the lower cross section of the bottom surface of the main tank part having an elliptical plate shape such that the rising height on the wall surface is approximately the same as the bottom part 42 of the stirring part When it is the bottom of the ship bottom structure, the main tank section bottom 43 is further provided with a tapered section as shown by the solid line in the figure showing the state of the lower cross section of FIG. The bottom surface 43 is a fan-shaped inclined bottom surface from the position below the partition wall 3 ′ to the center point of the bottom surface (in the case of the stirring device A5, a triangular shape), and the partition wall 3 ′ of the main tank unit 13 is disposed so that the wall surface is Divide the peripheral surface excluding the non-existing part equally (in the case of stirring devices A4 and A5, equal to 5 parts), and center the bottom The fan-shaped taper portions 53, 53, 53 are further raised from the bottom surface 43 of the main tank portion to the respective peripheral surfaces from the bottom of the partition wall 3 ′ to the center point of the bottom surface. 53, 53 may be provided. And each taper part 53 is gradually raised toward the taper part (taper part furthest away from the partition wall) on the opposite side from the inclined bottom face of the main tank part bottom face 43 so that the height increases gradually. The sides that contact the inclined bottom surface of the main tank portion bottom surface 43 of the tapered portion 53, 53 adjacent to the inclined bottom surface of the main tank portion bottom surface 43 are not stepped with the inclined bottom surface and coincide with the sides of the inclined bottom surface. ing.

In the case where such a fan-shaped taper portion 53 is provided, the rising height is not particularly limited, but for example, the inclined bottom surface 43 of the main tank portion bottom surface 43 of the taper portion 53 farthest from the partition wall. the inclination angle r ₂ is preferably 1 ° to 25 °, and more preferably is 3 ° to 5 °, is more preferable. In addition, when providing a fan-shaped taper part in this way, the number of installation of a taper part is although it does not restrict | limit in particular, Preferably it is 3 or more surfaces, More preferably, it is suitable in 3-6 surfaces. In addition, when the tapered portion is provided on the bottom surface of the main tank portion of the substantially circular box type, the configuration is not limited to such a configuration. For example, the bottom surface of the main tank portion constituting the ship bottom structure is used as a base line below the partition wall. The bottom surface of the main tank section has an elliptical slanted bottom that is slightly smaller than the peripheral wall. From the periphery, the position below both ends of the partition wall is zero and the height directly opposite the partition wall is the highest. It is also possible to provide a tapered portion that is inclined toward the surface. Further, even in the case of a substantially circular box type, the taper portion may have some steps.

  A stirring apparatus according to a sixth configuration example of the present invention will be described with reference to FIGS. FIG. 7 is a schematic perspective view of the stirring device A6 of the sixth configuration example of the present invention, in which a propeller-type stirrer is omitted, and details of the configuration of the stirring unit (tapered portion on the bottom surface) are omitted. FIG. 8 is a schematic perspective view showing a state where the stirring unit is viewed from the inside of the tank in order to explain the configuration of the stirring unit, and the configuration of the bottom surface of the main tank unit is omitted. Stirrer A6 is a system in which stirring tank 1 'is partitioned by four partition walls 3, 3, 3, 3 so as to have four stirring sections 12, 12, 12, 12 with respect to one main tank section 14. Assuming that the shape of the main tank part 14 includes the partition wall 3 in the wall surface of the main tank part 14, the shape of the main tank part 14 is a regular octagonal columnar tank (bottomed octagonal cylinder). A regular octahedral columnar tank having the following shape: Stirring units 12, 12, 12, 12 projecting outwardly in a total of four locations are provided on every other side of the octahedron. When it is assumed that the wall 3 is also included in the wall surface of the stirring unit 12, a substantially rectangular box shape and a rectangular box shape are obtained.

  In the case of this configuration example, as shown in FIG. 8, taper portions 54, 55, 55 are provided on the bottom surface 42 of each stirring portion, and the taper is provided toward the wall surface facing the partition wall 3 of the stirring portion 12. The portion 54 rises toward the wall surface at the same height. The tapered portions 55 and 55 on both sides of the portion 54 have the same height as the tapered portion 54 on the tapered portion 54 side, and are below the partition wall 3. Where it is located, it rises toward each wall surface of the stirring unit 12 adjacent to the partition wall 3 so as to have a height of zero (in an inclined state). In the case of this configuration example, the shape and size of the stirring portions 12, 12, 12, and 12, the size of the partition walls 3, 3, 3, and 3, the position of the stirring portions, the bottom surfaces 42, 42, 42, and 42 of the stirring portion. Are configured to be the same, but may be configured to be different. Further, the shape of the main tank part can be not only a regular polygonal shape but also a substantially polygonal shape. Further, the same type of propeller-type stirrer 2 is disposed and inserted in the stirring units 12, 12, 12, 12.

  The tank part bottom surface 44 is not provided with the stirring unit 12 (partition wall 3) from the position below the partition walls 3, 3, 3, 3 in the places where the stirring units 12, 12, 12, 12 are provided. At the location, the tanks gathered from the lower side of the side wall of the main tank part 14 toward the center point of the main tank part bottom face 44, and raised so that the rising height was the same as the rising height of the stirring part bottom face 42. (Inclined) Triangular inclined bottom surface 44a is combined, and each triangular inclined bottom surface 44a at the location where the stirring portions 12, 12, 12, 12 of the tank bottom surface 44 are provided has a corresponding stirring. It can be said that it has risen toward the wall surface of the main tank part 14 facing the part. In the case of the main tank bottom surface 44, for example, the four inclined bottom surfaces 44a where the stirring unit 12 (partition wall 3) is not provided are connected to both sides of the inclined bottom surface 44a (intersections with adjacent inclined bottom surfaces 44a). Line)), and the height at the center point of the main tank bottom 44 where the tips of the inclined bottom surfaces 44a are gathered is zero, and rises toward the side wall of the main tank 14, and the center point A pair of triangular taper portions (not shown) configured to intersect on the center line of the inclined bottom surface 44a passing through may be provided. When providing such a taper part, if the height in the side wall of this tank part of each taper part is made into the same grade as the height in the wall surface of the stirring part of the taper parts 54, 55, and 55 provided in the stirring part bottom face 42, Is more preferable. In the case of the present invention, the bottom surface of the stirring tank also includes the bottom surface of the main tank section and the stirring section in the case of a stirring tank in which one main tank section is provided with a plurality of stirring sections by a plurality of partition walls as in the stirring device A6. It has a ship bottom structure composed of a bottom surface. Also in the stirring device A6, the position of the rising or rising base line of the ship bottom structure, the bottom surface of the stirring portion 42, the partition wall 3, and the like are configured according to the above-described configuration example.

  In the present invention, in the case of a stirrer of the type provided with a plurality of stirrers 12 in one main tank part 44 as in the stirrer A6, the number of the stirrers is not particularly limited. Although it can select suitably according to the shape of this, For example, Preferably it is 2-8 places, More preferably, it is more suitable to provide about 4-6 places. Such a stirring device is more suitable when the capacity of the stirring tank is relatively large. For example, the stirring capacity is preferably 1 to 10 liters, more preferably about 2 to 5 liters. It is more suitable when using. In the case of a stirrer of the type in which one stirrer is provided in one main tank as in the stirrer A1 to stirrer A5, the capacity of the stirrer is not particularly limited. The amount is preferably more suitable when a stirring tank having an amount of about 0.4 to 1 liter is used. When the stirrer of the present invention is a type provided with a plurality of stirrers for one main tank part of a substantially polygonal cylinder like the stirrer A6, the shape of the main tank part (number of corners, etc.) The number of the stirring units installed, the shape of the bottom surface of the main tank unit, and the like can be appropriately set according to the configuration of the stirring device A6.

  In addition, this invention is not limited to the said structure, A various change can be made in the range which does not deviate from the summary of this invention.

Hereinafter, detailed explanation of the present invention shows an experimental example.

[Experimental Examples 1 to 4]
1 has the configuration of the stirring device A1 shown in FIG. 1, and the partition wall is made so that the acrylic resin stirring tank is 130 mm wide, 97 mm high, 76 mm deep, the main tank is 105 mm wide, and 15 mm or 5 mm above the partition wall. Disposed, with the position below the partition wall as a base line, the rising height of the bottom surface of the main tank portion with respect to the opposing wall surface is 20 mm, the rising angle is 10 °, the rising height of the stirring portion bottom surface with respect to the opposing wall surface is 25 mm, The height from the bottom of the lower end of the partition wall using a stirrer with a lift angle of 45 ° and an ASONE HIGH POWER MIWER (P-2) installed at the center in the width direction of the stirrer as a propeller stirrer The height is adjusted by the adjusting section so that (the height of the circulation section) is 2 to 15 mm, and 0.65 liter of watt bath based on nickel sulfate is put into the tank, and the propeller The liquid in the main tank immediately after the start of stirring is set to a flow rate of 1200 rpm, 15 mm or 5 mm above the partition wall, and the flow rate to the main tank is 2 mm, 5 mm, 10 mm, and 15 mm. Obtained from the volume of the water level difference between the surface and the liquid level of the stirring part, and the state in the tank immediately after the start of stirring was visually observed from the outside of the stirring tank, and the dispersibility of the diamond particles (# 325/400) was evaluated as follows. Based on the evaluation. The results are shown in Table 1 below.

<Evaluation criteria>
◎: 70% or more of the whole stirring ○: 50 to 70% of the whole stirring Δ: 50% of the whole stirring

According to the results in Table 1, it was confirmed that the flow rate could be adjusted depending on the height of the circulation part. Note that the experimental examples 3 and 4, stirring force (e.g., rotation speed, propeller shape, etc.) by strong, it is possible to obtain the desired stirring dispersibility.

Stirring was started under the above experimental examples 1 to 4 conditions, solid particles (diamond powder) # 1000 electrodeposition (12～25Myuemu) a (Ni) for 10 minutes at normal plating conditions, the experimental example, respectively 5 It was set to ~ 8. The appearance of the object to be plated (surface) was visually observed in each experimental example were evaluated based on the following evaluation criteria. The results are shown in Table 2 below.

<Evaluation criteria>
A: Solid particles were fixed uniformly.
○: 50% solid particles were fixed.
Δ: 30% solid particles were fixed.

It should be noted that the experimental example 7 and 8, by performing electrodeposition in a state that the diamond powder stirring was stopped a predetermined time in a dispersed state (5 minutes), it was possible to accelerate the fixation time of diamond powder.

  The present invention can stir, disperse, mix and dissolve a liquid-based mixed system in which solids such as solid particles are mixed in a liquid, and can also be emulsified. It can be used for stirring, dispersing, mixing, dissolving, emulsifying and the like of various liquid mixing systems in various fields such as composite plating foods, stirring and mixing of building materials, content of ceramics, and mixing of fragrances.

It is a schematic longitudinal cross-sectional view of the stirring apparatus explaining the 1st structural example of the stirring apparatus of this invention. It is a schematic plan view of the stirring apparatus explaining the 2nd structural example of the stirring apparatus of this invention. It is a schematic perspective view of the stirring apparatus of said 2nd structural example. It is a schematic longitudinal cross-sectional view of the stirring apparatus explaining the 3rd structural example of the stirring apparatus of this invention. It is a schematic plan view of the stirring apparatus explaining the 4th structural example of the stirring apparatus of this invention. It is a schematic perspective view of the stirring apparatus explaining the 5th structural example of the stirring apparatus of this invention. It is a schematic perspective view of the stirring apparatus explaining the 6th structural example of the stirring apparatus of this invention. It is a schematic perspective view of the stirring part of the stirring apparatus of the said 6th structural example.

Explanation of symbols

A1-A6 Stirrer 1, 1 'Stirrer 11, 13, 14 Main tank 12 Stirrer 2 Propeller-type stirrer 3, 3' Partition wall 32 Projection 33 Notch 4 Bottom 41, 43, 44 Bottom of main tank 42 Stirring unit bottom surface 51, 52, 53, 54, 55 Taper unit 6 Current plate 6a Air gap

Claims (4)

A stirring unit in which a propeller-type stirrer is installed and a main tank unit are provided, and the stirring unit and the main tank unit are arranged so that liquid in the tank can flow between them from above and below. A stirring apparatus having a stirring tank partitioned by a partition wall, wherein the bottom surface of the stirring tank faces the stirring section and the main tank section from a position corresponding to the position where the partition wall is disposed or in the vicinity thereof. Each of the main tank part and / or the bottom part of the stirring part further includes a taper part that rises toward the respective wall surface, and the partition wall has a structure configured to rise toward the wall surface. A stirrer characterized by comprising a projecting portion projecting toward the stirrer side at a lower end thereof, and a notch portion into which the shaft portion of the propeller stirrer can be inserted in the projecting portion . Furthermore, the stirring apparatus of Claim 1 provided with the adjustment part which was provided so that it could move up and down along the said partition wall, and adjusted the height from the bottom face of the lower end part of this partition wall. The stirrer according to claim 1 or 2 , wherein a rectifying plate having a reverse bell mouth structure gap is disposed in the main tank portion in the horizontal direction. The stirring device according to claim 1 , 2 or 3, comprising a plurality of the stirring portions.

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